In APL+Win v16 the value substitution feature applicable to the CSE ExecStmt and GetValue methods has been enhanced.The prior version of the CSE assumed that when an APL+Win text vector value was to be substituted into a C# executable expression, that value was to be considered a C# string.In the APL+Win v16 the CSE does not make that assumption, so that it is now possible to substitute either a string or the name of a previously-defined C# variable into a C# executable expression.The APL+Win programmer must now indicate which of these options applies.Explicit quotation marks in either the C# executable expression or in the APL+Win text vector indicate that the substituted value from APL+Win should be considered a C# string.This is documented in the CSE manual, but here are some examples illustrating these options: